CPC Subgroup
C07C 43/14 Unsaturated ethers
Full Title
Ethers; Compounds having [IMAGE cpc-sch-C07C-0958.gif] groups,[IMAGE cpc-sch-C07C-0959.gif] groups or[IMAGE cpc-sch-C07C-0960.gif] groups > Ethers > having all ether-oxygen atoms bound to acyclic carbon atoms > Unsaturated ethers
5 direct subcodes
Child Classifications
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- C07C 43/15 containing only non-aromatic carbon-to-carbon double bonds
- C07C 43/162 containing rings other than six-membered aromatic rings
- C07C 43/164 containing six-membered aromatic rings
- C07C 43/17 containing halogen
- C07C 43/178 containing hydroxy or O-metal groups
Top Applicants
Top 10 applicants by patent filingsfor class C07, 2013–2023, worldwide · Source: EPO PATSTAT
- ROCHE CH 12,683
- NOVARTIS CH 10,775
- CHINESE ACADEMY OF SCIENCES 10,619
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
- REGENERON PHARMACEUTICALS US 8,426
- BRISTOL-MYERS SQUIBB COMPANY US 7,979
- LG CHEM KR 7,978
- HARVARD UNIVERSITY US 7,706
- UNIVERSITY OF CALIFORNIA US 7,455
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219